| − | The anti-electron neutrino is the antiparticle of the electron neutrino, and as such has an opposite charge and spin. They are emitted when a neutron turns into a proton. It has a mass of <2.2 eV. <ref>http://prd.aps.org/abstract/PRD/v84/i11/e112003</ref> Like all neutrinos, this partical is affected only by gravity and the weak nuclear force, making it extraordinarily hard to both detect and experiment upon. | + | The anti-[[electron]] [[neutrino]] is the [[subatomic particle|antiparticle]] of the electron neutrino, and as such has an opposite charge and spin. They are emitted when a [[neutron]] turns into a [[proton]]. It has a mass of <2.2 eV. <ref>http://prd.aps.org/abstract/PRD/v84/i11/e112003</ref> Like all neutrinos, this particle is affected only by [[gravity]] and the [[weak nuclear force]], making it extraordinarily hard to both detect and experiment upon. |